Bommer Canyon

Irfan Khan / Los Angeles Times

Children from Bonita Canyon Elementary School in Irvine walk through Bommer Canyon to attend the announcement ceremony  timed to coincide with Earth Day  designating the historic Irvine Ranch land as the first California Natural Landmark. To make the statewide list, land must be mostly undisturbed and have such biological and geological significance that it could have been preserved as a state or national park.

Children from Bonita Canyon Elementary School in Irvine walk through Bommer Canyon to attend the announcement ceremony  timed to coincide with Earth Day  designating the historic Irvine Ranch land as the first California Natural Landmark. To make the statewide list, land must be mostly undisturbed and have such biological and geological significance that it could have been preserved as a state or national park. (Irfan Khan / Los Angeles Times)

Children from Bonita Canyon Elementary School in Irvine walk through Bommer Canyon to attend the announcement ceremony  timed to coincide with Earth Day  designating the historic Irvine Ranch land as the first California Natural Landmark. To make the statewide list, land must be mostly undisturbed and have such biological and geological significance that it could have been preserved as a state or national park.